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(No Model.)

e. e. BURKE.

Telegraphie Repeater Sounder.

Patented June 28,1881.

N. PETERS. Phommhcgmpher 15h em. i? slm UNITED STATES PATENT OEEIcE.

CHARLES G. BURKE, OF NEW YORK, N. Y.

TELEGRAPHlC-REPEATER SOUNDER.

SPECIFICATION forming vpart of Letters Patent No, 248,359, dated June28, 1881.

Application filed March 28, 1881.

To all whom it may concern Beit known that I, CHARLES G. BURKE, of t-hecity of New York, county and State of New York, have invented a new andvaluable Improvement in Telegraphic Repeaters, of which the following isa speciication.

The object of my invention is to enable the repetition in two or moredirections other than that of the main line or circuit to be made oftelegraphic impulses by the instrument to which the original impulse orsignal has been communicated, and simultaneously with the localmanifestation by sound or motion by such instrument the nature of suchimpulse or signal so communicated.

The following specification will more fully explain my invention,reference being had to the drawings hereto annexed and accompanying thesame, in which- Figure 1 is a side view of a telegraphic sounderarranged with my improvement, so that two repetitions of a communicatedimpulse will be made. Fig. 2 is an end view of the same.

A is an inverted impending electro-magnet, having the usual connectionsfound in a telegraphic main line or circuit.

B is an armature box or frame placed beneath the magnet, in which isplaced the armature O.

D andD are stops or rests supporting armature C, when the armature is atrest or not subjected to the influence of the magnet A, and these alsoserve and act as receiving-posts for wires F and F.

H and H are also two stops passing through the top of armaturebox B,which limit the upward motion of armature O, and they also serve toreceive the wires I and I.

W W are the wires of the main line or circuit. M is a galvanic batteryconnected with wire F. N is also a galvanic battery connected with wireI.

It will be readily seen that the magnet A is in the main line orcircuit, and that if the electric current is communicated thereto thearmature O will be attracted thereby.

It will also be seen that when the armature O, which is of suitablematerial, rests on the stops D D it is a connecting part of anindependent circuit operated by the power of the (No model.)

battery M. It will also be seen that the stops H H at the top of thearmaturebox B are also separated portions of an independent circuit, andwhich circuit is operated by the battery N when such circuit is closedor formed by connecting the saidstops H and H.

The rest of the mechanism employed is that usually found in instrumentsemployed in telegraphy.

The operation of my invention is as follows: To the electro-magnet A iscommunicated an electric impulse from the main battery. (Not shown.) Thearmature O is thereupon immediately attracted from the stops D and D bysuch magnet A, and is met in its movement toward the said magnet andstopped by the stops H and H', manifesting locally by such movement orthe sound produced thereby the impulse given, and repeating at the sametime such impulse by breaking the circuit operated bythe battery M andclosing the circuit operated by the battery N. The duration of time orlength ofthe continuance of the impulse so communicated and manifestedwill determine its character and meaning, making or defining it as a dotor a dash, and its reproduction by repetition will have and convey acorresponding and equivalent signilication wherever the same ismanifested by such repetition.

Thus it will be seen that by this mechanism, and which constitutes myimprovement, substantially the same message may be simultaneouslyrepeated in dierent directions, the number of such repetitions beingonly limited by the number of circuits arranged to be made or broken bythe operation and movement of armature (l.

rIhe armature O may be divided, as shown in Fig. 3, into severalcomplete and distinct parts, the whole combined forming the completearmature, it being only necessary' that such parts be insulated,preventing communication with one another, and such parts so insulatedmay be made to make and break a corresponding number of electriccircuits by their contact with or separation from the connecting-pointsof such circuits placed within the action of such parts by the movementsof armature C. Such an armature O is divided into four distinctinsulated parts, a b c d, as shown in Fig. 3, such parts togetherforming IOO .for such a contingency by insulation.

said armature C. It (said Fig. 3) also shows four battery or electricconnections, e j' g 7L, and whereby four independent circuits may besimultaneously affected by the movement of armature C by the attractionof electro-magnet A, as heretofore described and explained.

The insulation ofthe armature shown in Fig. 3 may not ordinarily be anabsolute essential element to its correct working7 since the impulsescommunicated through the several circuits made or broken by the movementof the armature must always be the same, and therefore no confusion ofmeaning.;1 could arise from a commingling of the currents. Where,lhowever, circuits differ materially in length it may be essential, andI therefore desire to provide The form of the armature is unessential,except in so far as to secure a prompt and uniform movement, and I donot limit myself to the i'orm shown. If the armature be hinged, as shownin Fig. 5 of Patent No. 240,006, issued to me April l2, 1881, and thepoint of the pivots of such hinge be insulated, and the bar itself, byconnection, made a link of such circuit, such an armature may be used tomake and break the circuits, open and closed, with the same effect andlike result as the armature shown in Fig. l.

I am aware that it is not novel to have a telegraphic instrument repeatan electric impulse in two directions at the same time, and this I donot claim, broadly; but

What I do claim, and for which I desire Letters Patent, is-

l. A telegraphic repeater or instrument consisting of an invertedimpending electro-magnet with an underlying armature, such armaturehaving afree movement upward and downward in a suitable armature-box, incombination with stops and electric circuit connecting points insertedin and affixed to said armatureboX, the armature, when at rest, forminga part or connection of one or more telegraphic circuits, and causing,by its movement upward and downward, a local manifestation of theoriginal impulse given, and at the same time repeating, by itsseparation from and contact with such connecting-points, alike andsimultaneous manifestation of such impulse in as many directions as maybe provided for, or as there are connecting circuit-points arranged insaid armature-box and within the action and operation of said armaturein its movements, substantially as described, and for the purposespecified.

2. An armature-box havingconnecting-points of two or more separate andindependent electric circuits affixed therein, such points to beconnected and such circuits formed and broken by an armature having afree motion npward and downward within said box, and in combinationtherewith, the movement of such armature being effected by anelectro-magnet in combination with such armature and box, substantiallyas describe'l, and for the purposes specified.

3. An armature consisting of two or more parts, each constituent partinsulated and electrically distinct, the whole forming a completearmature, in combination with an armaturebox having affixed thereinconnectingpoints of distinct electric circuits corresponding with thedivisions of such armature, and arranged So that the movement ofsucharmature and its parts will close and break such electric circuits, suchmovement to be effected by the attractile power of an electro-magnet, incombination with such armature and armature-box and electric circuitconnections, substantially as described and for the purposes specified.

CHARLES G. BURKE.

Witnesses:

THEO. G. Hos'rnrt, OHAs. It. CLARKE.

